Stop-valve.



Paten ted Mar. 4, I902.

.1. WALSH, 1R. STOP VALVE.

(Application filed Nov. 18, 1901.)

(No Model.)

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m: uunms PETERS wJPuuniLn-ua. wasuma'mn. n. cy

UNITED STATES PATENT OFFICE.

JAMES WALSH, JR., OF PHILADELPHIA, PENNSYLVANIA.

STO P-VALVE.

SPECIFICATION forming part of Letters Patent No. 694,706, dated March 4, 1902. Application filed November 18, 1901. Serial No. 82,738. (No model.)

To aZZ whom it may concern:

Be it known that 1, JAMES WALSH, Jr., a citizen of the United States, residing in Philadelphia, Pennsylvania, haveinvented certain Improvements it Stop-Valves, of which the following is a specification,

The object of my invention is to so construct a hydrant or other ground-seat valve or a compression or other cock having a turning plug or stem as toprevent the cutting away of said plug or stem by the dirt, grit, rust, or other abrading agent which usually finds access thereto and has such etle'ct. This object I attain in the manner hereinafter-set forth, reference being had to the accompanying drawings, in which Figure 1 is a longitudinal section of an ordinary form of hydrant-cock having my invention applied thereto. Fig. 2 is a transverse section of the same. Fig. 3 is a sectional plan view on the linea a, Fig. 1; and Fig. 4 is a view illustrating a certain modification of the invention.

Ordinary hydrant-valves, hopper-cocks, and other forms of cocks and valves are subject to rapid cutting awayof the plug or stem, either by means of dirt and grit gaining access thereto outside of the valve-casin g,

as in the case of a hydrant-valve, or by rust from the pipe to which the valve is connected, such abrading of the plug permitting leakage which in the case of a buried hydrantvalve in time washes away the surrounding earth and causes undermining of the property in the vicinity and also contamination of the water of the hydrant by leakage of mud and muddy water into the pipe on the delivery side of the valve. In order to overcome this objection, I incase the projecting portion of the plug of the valve and form between the same and the barrel of said valve tapering ground seat in the barrel and is confined vertically therein by a nut'5, adapted to the threaded lower end of the plug 4. The plug has the usual passage 6 for the flow of water or other liquid from the branch 2 of the cock to the branch 3 of the same, and also has in one side the usual drainage-passage 7, which when the plug is turned so as to cut off the flow through the cock communicates with the delivery-passage 3 and also with a drainage-opening 9, formed in the barrel of the cock,so as to d rai n the waste water through the latter. This is the usual construction; and my invention consists in applying to the body or barrel of the cock a water-tight cylinder surrounding the upper portion of the barrel and forming, with the same, a chamber with which the drainage-opening 9 communicates and which has a suitable outlet forthe drainage-water after the latter has cleaned the dirt and grit from the plug of the cock. This cylinder is shown in the drawings at 10 and is screwed upon a threaded portion of the barrel 1 of the cock below the drainage-opening 9,

suitable packing 11 being, if necessary, em

ployed to form a tight joint between the lower portion of the cylinder and the body of the cock. The cylinder extends slightly above the top of the barrel and is there contracted so as to bear upon the upper portion of the plug 4, this bearing being by preference a ground seat formed at the same time as the seat in the barrel of the cock, so that as the plugt is adjusted to compensate for wear it will remain properly seated in the contracted top or the cylinder, as well as in the barrel. The cylinder has at one side an outlet branch -12, which may communicate with a drainage pipe or may discharge directly into the ditch or other chamber in which the valve is located, the cylinder and barrel being so formed that when the end of the cylinder seats or shoulders upon the barrel the drainage-opening will be at the right or left, as desired. When the plug t is turned, so as to bring the drainage-passage 7into line with the delivery a branch 3 and drainage-opening 9 of the cock,

there will be a forcible flow of water into and through the chamber between the barrel of the cock and the cylinder. 10, thereby flushing said chamber and washing therefrom any particles of dirt or grit which might other wise find their way between the plug of the valve and its seat, and thus serve to cut or groove the latter so as to cause leakage.

Although I prefer in all cases to apply the cylinder to the cock by securing it upon the threaded portion of the barrel, as shown, my invention is not limited to this construction, as the cylinder may, if desired, be cast with the barrel, as shown at 10 in Fig. 4, and instead of providinga ground joint between the contracted upper portion of the cylinder and the plug of the cock I may use one or more washers for this purpose. For instance, there may be a washer 13 inside of the cylinder and, if desired, another washer 1% outside of the same, the construction shown in Figs. 1 and 2 being preferred, however, because of its cheapness and because it does not materially increase the bulk of the valve. It is also evident that my invention can be used in connection with the valve stem and easing of a com prcssion-cock as well as with the plug and barrel of a plug-cock.

Having thus described my invention, I claim and desire to secure by Letters Patcnt 1. A cock or valve having a drainage-opening in the upperportion of the barrel and having a cylinder surrounding said upper portion of the barrel and forming with the same a chamber which receives the waste water from the d rainage-opcning, and causes the same to wash the projecting portion of the plug or stem of the cock, substantially as specified.

3. 'lheeombination of aeock or valve hav-,

ing a barrel with drainage-opening therein, with a cylinder surrounding said barrel and having a bearing upon the plug or stem of the cock above the barrel, said cylinder forming, with the barrel of the cook, a chamber through which the waste water is caused to flow, substantially as specified.

3. The combination of a cook or valve having a drainage-opening in the upper portion of the barrel and a threaded portion below the same, with a cylinder screwed onto said threaded portion of the barrel and forming a chamber surrounding the upper portion of the barrel, through which chamber the Waste water is caused to flow, substantially as specified.

4. The combination of a cock or valve having a drainage-opening in the upper portion of the barrel and a threaded portion below the same, with a cylinder screwed onto said threaded portion of the barrel and having a contracted upper portion bearing upon the stem or plug above the top of the barrel, said cylinder forming a chamber surrounding the upper portion of the barrel through which chamber the waste water is caused to How, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES \VALSIT, .lR.

Witnesses WALTER CIIISM, .Tos. II. KLEIN. 

